哺乳动物的

The duckbill was oviparous, so it could not be a mammal an-imal''.

兽'。''是卵生的，因此肯定不是哺乳动物。

The echidna is such a unique animal that it is classified in a special class of mammals known as monotremes , which it shares only with the platypus.

因针鼹鼠之独特，被定类为特殊的哺乳动物，属单孔类动物。单孔类动物只有针鼹鼠和鸭嘴兽。

Also known as orcas, these marine mammals often use echolocation to find their prey, which usually consists of fish and squid.

也被称为逆戟鲸，这些海洋哺乳动物经常使用回声定位法找到自己的猎物，这通常组成由鱼类和鱿鱼。

Of or belonging to the order Edentata, which includes mammals having few or no teeth, such as anteaters, armadillos, and sloths.

贫齿目的属于贫齿目的，包括无齿和少齿的哺乳动物，如食蚁兽、犰狳和树懒

Large bear sized extinct edentate mammal of the Pleistocene in South America .

在更新世南美洲的大型贫齿哺乳动物，现已灭绝。

Large bear sized extinct edentate mammal of the in South America .

生活在更新世南美洲的大型贫齿类哺乳动物，现已灭绝。

Any of various slow-moving, arboreal, edentate mammals of the family Bradypodidae of South and Central America, having long hooklike claws by which they hang upside down from tree branches and feeding on leaves, buds, and fruits, especially

树懒：生活在美洲中部和南部的树懒科哺乳动物之一，移动缓慢，栖息在树上，无齿目，爪子长而有钩，它们用爪子倒悬在树枝上，吃树叶、嫩芽和果实，尤指

In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may

从脑电图上看，我们人类和所有灵长目动物以及几乎所有的哺乳动物和鸟类都一样需要睡眠；甚至爬行类动物也有睡眠。

In the electroencephalographic sense we share it with all the primates and almost all theother mammals and birds: it may extend back as far as the reptiles.

从脑电图上看，我们人类和所有灵长目动物以及几乎所有的哺乳动物和鸟类都一样需要睡眠；甚至爬行类动物也有睡眠。

In the electroencephalographic sense we share it with all the primates and almost all the other ma MM als and birds: it may extend back as far as the reptiles.

从脑电图上看，我们人类和所有灵长目动物以及几乎所有的哺乳动物和鸟类都一样需要睡眠；甚至爬行类动物也有睡眠。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。